HTH™ Pool Care 3" Chlorine Tabs Ultra: 3 Inch Chlorine Tabs
HTH™ Pool Care 3" Chlorine Tabs Ultra are all-in-one pool chlorine tablets that make reliable results feel effortless.
- These slow-dissolving, sun-protected chlorine tablets deliver steady sanitizer for up to a week while clarifying, softening, and guarding surfaces against stain and scale.
- Use these versatile chlorine tabs in a skimmer, floater, or feeder across all pool types.
When you want dependable clarity and comfort with less hands-on work, choose chlorine tablets for pools from the brand that prepares you to tackle anything. HTH™ is here to help.
All-In-One Power
Pool chlorine tablets sanitize, clarify, soften, and protect surfaces for balanced comfort and confident clarity.
Weeklong Dosing
Slow-dissolving chlorine tabs release steady sanitizer up to seven days, reducing daily measuring and maintenance.
Stain & Scale Protection
Built-in protection helps shield pool surfaces and equipment for cleaner walls, tile, and filters.
App-Enhanced Results
Connect with the free HTH™ Test to Swim™ app for guided water care and smarter, faster results.
How to use
HTH™ 3" Chlorine Tabs Ultra: 3 Inch Chlorine Tabs
1. Place Tab(s) In Feeder, Floater or Skimmer
One tab treats 10,000 gallons of water. Do not add tabs directly to the pool as this could damage surfaces.
One tab treats 10,000 gallons of water. Do not add tabs directly to the pool as this could damage surfaces.
2. Repeat Weekly
For best results, refresh your tab every week or as often as needed to maintain a chlorine residual of 1-4 ppm.
For best results, refresh your tab every week or as often as needed to maintain a chlorine residual of 1-4 ppm.